Sth wrong with the installation of the package--geojsonio

(windows7)

I've tried:

 install.packages("geojsonio")

and

devtools::install_github("ropensci/geojsonio")

but the package "jql" had non-zero exit status.

Then I chose the CRAN packages only version of the geojsonio in github.
This time, "jsonlite" didn't work.


"jqr" *